Media Remoting: Remove old interstitial implementation.

media/remoting/interstitial.cc

Index: media/remoting/interstitial.cc
diff --git a/media/remoting/interstitial.cc b/media/remoting/interstitial.cc
deleted file mode 100644
index 2548a2d0decc862257db11266df51b62c74fb379..0000000000000000000000000000000000000000
--- a/media/remoting/interstitial.cc
+++ /dev/null
@@ -1,165 +0,0 @@
-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "media/remoting/interstitial.h"
-
-#include <algorithm>  // for std::max()
-
-#include "media/base/localized_strings.h"
-#include "media/base/video_frame.h"
-#include "media/base/video_util.h"
-#include "skia/ext/image_operations.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "third_party/skia/include/core/SkCanvas.h"
-#include "third_party/skia/include/core/SkTypeface.h"
-#include "third_party/skia/include/effects/SkBlurImageFilter.h"
-#include "ui/gfx/color_palette.h"
-#include "ui/gfx/geometry/size.h"
-#include "ui/gfx/paint_vector_icon.h"
-#include "ui/gfx/skbitmap_operations.h"
-#include "ui/vector_icons/vector_icons.h"
-
-namespace media {
-namespace remoting {
-
-namespace {
-
-// The interstitial frame size when |background_image| is empty or has low
-// resolution. The frame height may be adjusted according to the aspect ratio of
-// the |background_image|.
-constexpr int kDefaultFrameWidth = 1280;
-constexpr int kDefaultFrameHeight = 720;
-
-SkBitmap ResizeImage(const SkBitmap& image, const gfx::Size& scaled_size) {
-  DCHECK(!scaled_size.IsEmpty());
-
-  if (image.width() == scaled_size.width() &&
-      image.height() == scaled_size.height())
-    return image;
-
-  return skia::ImageOperations::Resize(
-      image, skia::ImageOperations::RESIZE_BEST, scaled_size.width(),
-      scaled_size.height());
-}
-
-void RenderCastMessage(const gfx::Size& canvas_size,
-                       InterstitialType type,
-                       SkCanvas* canvas) {
-  DCHECK(canvas);
-  if (type == InterstitialType::BETWEEN_SESSIONS)
-    return;
-
-  // Blur the background image.
-  constexpr SkScalar kSigma = SkIntToScalar(10);
-  SkPaint paint_blur;
-  paint_blur.setImageFilter(SkBlurImageFilter::Make(kSigma, kSigma, nullptr));
-  canvas->saveLayer(0, &paint_blur);
-  canvas->restore();
-
-  // Create SkPaint for text and icon bitmap.
-  // After |paint| draws, the new canvas should look like this:
-  //       _________________________________
-  //       |                                |
-  //       |                                |
-  //       |             [   ]              |
-  //       |        Casting Video...        |
-  //       |                                |
-  //       |________________________________|
-  //
-  // Both text and icon are centered horizontally. Together, they are
-  // centered vertically.
-  SkPaint paint;
-  paint.setAntiAlias(true);
-  paint.setFilterQuality(kHigh_SkFilterQuality);
-  paint.setColor(SK_ColorLTGRAY);
-  paint.setTypeface(SkTypeface::MakeFromName(
-      "sans", SkFontStyle::FromOldStyle(SkTypeface::kNormal)));
-  const SkScalar text_height = SkIntToScalar(canvas_size.height() / 18);
-  paint.setTextSize(text_height);
-
-  // Draw the appropriate text.
-  const std::string message =
-      (type == InterstitialType::IN_SESSION
-           ? GetLocalizedStringUTF8(MEDIA_REMOTING_CASTING_VIDEO_TEXT)
-           : GetLocalizedStringUTF8(MEDIA_REMOTING_CAST_ERROR_TEXT));
-  SkScalar display_text_width =
-      paint.measureText(message.data(), message.size());
-  SkScalar sk_text_offset_x =
-      SkScalarFloorToScalar((canvas_size.width() - display_text_width) / 2.0);
-  SkScalar sk_text_offset_y =
-      SkScalarFloorToScalar((canvas_size.height() / 2.0) + text_height);
-  canvas->drawText(message.data(), message.size(), sk_text_offset_x,
-                   sk_text_offset_y, paint);
-
-  // Draw the appropriate Cast icon.
-  const gfx::VectorIcon& current_icon = type == InterstitialType::IN_SESSION
-                                            ? ui::kMediaRouterActiveIcon
-                                            : ui::kMediaRouterWarningIcon;
-  gfx::ImageSkia icon_image = gfx::CreateVectorIcon(
-      current_icon, canvas_size.height() / 6, SK_ColorLTGRAY);
-  const SkBitmap* icon_bitmap = icon_image.bitmap();
-  SkScalar sk_image_offset_x = (canvas_size.width() - icon_image.width()) / 2.0;
-  SkScalar sk_image_offset_y =
-      (canvas_size.height() / 2.0) - icon_image.height();
-  canvas->drawBitmap(*icon_bitmap, sk_image_offset_x, sk_image_offset_y,
-                     &paint);
-}
-
-gfx::Size GetCanvasSize(const gfx::Size& image_size,
-                        const gfx::Size& natural_size) {
-  if (natural_size.IsEmpty())
-    return gfx::Size(kDefaultFrameWidth, kDefaultFrameHeight);
-  int width = std::max(image_size.width(), kDefaultFrameWidth) & ~1;
-  base::CheckedNumeric<int> height = width;
-  height *= natural_size.height();
-  height /= natural_size.width();
-  height &= ~1;
-  gfx::Size result = gfx::Size(width, height.ValueOrDefault(0));
-  return result.IsEmpty() ? gfx::Size(kDefaultFrameWidth, kDefaultFrameHeight)
-                          : result;
-}
-
-}  // namespace
-
-scoped_refptr<VideoFrame> RenderInterstitialFrame(const SkBitmap& image,
-                                                  const gfx::Size& natural_size,
-                                                  InterstitialType type) {
-  gfx::Size canvas_size =
-      GetCanvasSize(gfx::Size(image.width(), image.height()), natural_size);
-  SkBitmap canvas_bitmap;
-  canvas_bitmap.allocN32Pixels(canvas_size.width(), canvas_size.height());
-  canvas_bitmap.eraseColor(SK_ColorBLACK);
-  SkCanvas canvas(canvas_bitmap);
-
-  // Draw background image on the canvas.
-  if (!image.drawsNothing()) {
-    gfx::Rect centered_rect = ComputeLetterboxRegion(
-        gfx::Rect(canvas_size), gfx::Size(image.width(), image.height()));
-    SkBitmap processed_image = ResizeImage(image, centered_rect.size());
-    if (type != InterstitialType::BETWEEN_SESSIONS) {
-      color_utils::HSL shift = {-1, 0, 0.2};  // Make monochromatic.
-      processed_image =
-          SkBitmapOperations::CreateHSLShiftedBitmap(processed_image, shift);
-    }
-    canvas.writePixels(processed_image, centered_rect.x(), centered_rect.y());
-  }
-
-  RenderCastMessage(canvas_size, type, &canvas);
-
-  // Create a new VideoFrame, copy the bitmap, then return it.
-  scoped_refptr<VideoFrame> video_frame = VideoFrame::CreateFrame(
-      PIXEL_FORMAT_I420, canvas_size, gfx::Rect(canvas_size), canvas_size,
-      base::TimeDelta());
-  if (video_frame) {
-    SkAutoLockPixels pixel_lock(canvas_bitmap);
-    CopyRGBToVideoFrame(reinterpret_cast<uint8_t*>(canvas_bitmap.getPixels()),
-                        canvas_bitmap.rowBytes(),
-                        gfx::Rect(canvas_size.width(), canvas_size.height()),
-                        video_frame.get());
-  }
-  return video_frame;
-}
-
-}  // namespace remoting
-}  // namespace media